Pintle-retainer for hinges.



No. 807,680. PATENTED DEC. 19, 1905. B. W. LEWIS.

PINTLE RETAINER FOR HINGES.

APPLICATION FILED OUT. 6, 1904.

BURTON W. LEWIS, OF

STANLEY WORKS,- TION OF CONNECTICUT.

PLAINVILLE, CONNECTICUT, ASSIGNOR TO THE OF NEW BRITAIN, CONNECTICUT, ACORPORA- PlNTLE-RETAINER FOR HINGES.

Specification of Letters Patent.

Patented. Dec. 19, 1905.

Application filed October 6, 1904. Serial No. 227,444.

To all whom it may concern:

Be it known that I, BURTON W. LEWIS, a citizen of the United States,residing at Plainville, in the county of Hartford, State of Connecticut,have invented certain new and useful Improvements in Pintle-Retainersfor Hinges, of which the following is a full, clear, and exactdescription.

My invention relates to improvements in hinges, and particularly to whatis termed a pintle-retaining device.

The object of the invention is to provide a simple, inexpensive, andefliective means for securely retaining a pintle in place to prevent itfrom working up or out of its proper position.

In the accompanying drawings, Figure 1 is illustrative of a portion of ahinge or butt showing part of the hinge-knuckle and retainer in sectionand a portion of the spindle in elevation. Fig. Qrepresents the upperend of a pintle detached. Fig. 3 is a plan view of a detail ofconstruction. Fig. 4 is a view similar to that of Fig. 1 andillustrating a modification.

1 represents a portion of a hinge-leaf.

2 is the knuckle.

3 is the pintle. Near the upper end of the pintle I provide aprojection,preferably in the form of an annular bead 3, which standsbeyond the surface of the pintle, as best'seen in Fig. 2. Thisprojection or bead may be formed in any desired way. In the end of theouter hinge-knuckle I provide a cavity or recess of suitable size toreceive a split ring 4 or equivalent means. The inside diameter of thesplit ring 4 is approximately the diameter of the pintle 3, so that whenthe pintle is slipped into place it will ofier a slight resistance tothe passage of the projection 3. This split ring 4 may be held in placein the recess in the knuckle 2 in any desired mannerfor example, by aseparate overstanding washer 5, such as shown in Fig. 1, or by anintegral overstanding shouldered portion 5*, such as shown in Fig. 4. Itwill be noted that the projection 3* on the pintle is formed thereon atsuch a point as to engage underneath the split ring 4 when the pintle isin its home position. Since the retainer 4 is held against longitudinalmovement in the knuckle 2, it is obvious that it will resist the workingout of the pintle.

It is necessary in the operation of the device that the washer 5 or theintegral shoulder 5 should have a passage slightly larger than thenormal diameter of the pintle and sufliciently large to permit the freepassage therethrough of the projection 3 on said pintle.

What I claim is 1. In a hinge, a knuckle recessed at one end, a yieldingpintle retaining device located therein, means for preventing theaccidental detachment of said retainlng device, a pintle having alateral projection thereon extending beyond the surface of the pintleand arranged to coact with said retaining device.

2. In a hinge, a knuckle having an annular recess inythe end thereof, anannular yielding pintle-retaining device arranged therein, means toprevent the accidental detachment of said retaining device, a pintlehavinga lateral projection thereon arranged to coact with said yieldingretaining device, the entrance to the knuckle being enlarged to form aclearance-passage for said lateral projection on the pintle,substantially as described.

3. In a hinge, a knuckle having an annular recess in the outer endthereof, a split ring located therein, means for holding said split ringin place but leaving it free to expand and contract, a pintle having alateral projection thereon extending beyond the bearingsurface of saidpintle and arranged to coact with said split ring and aclearance-passage at the entrance to said knuckle to admit of the freepassage of said projection.

4. In a hinge, a knuckle having an annular recess in the outer endthereof, a split ring located therein, means for holding said split ringin place but leaving it free to expand and contract, a pintle having anannular lateral projection thereon extending beyond the surface of saidpintle and arranged to coact with said split ring and aclearance-passage at the entrance to said knuckle to admit of the freepassage of said annular projection.

Signed at New Britain,Connecticut,this 21st day of September, 1904.

BURTON W. LEWIS.

